Well-boring machine



(No Model.) 2 Sheets-Sheet 1.

W. VELTE.

WELL BORING MACHINE.

Patented May 2'7 (No Model.) 2 Shots-SheetB.

W. VELTE.

WELL BORING SMAUHINE.

Patnted May 2751884.

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WELL-BORING MACHINE.

SPECIFICATION forming part of Letters Patent No. 299,298, dated May 27, 1884.

(No model.)

To all whom it may concern:

Be it known that I, WILLIAM VEL'rE, a citizen of the United States, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in hVell-Boring Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to an improvement in well-boring machines; and it consists in a vibrating beam connected with an air-pump, a

reel operated by a worm, and a rope with a clamp for holding the drilling rope and tools, as will be fully described hereinafter.

In well-boring machines it has heretofore been customary to suspend the boring-tools at the end of rope and to adjust its length by a tamperingscrew, which requires constant attention. To avoid this I wind a rope around a reel, that, by a worm-screw, is made to feed or yield as much of the rope as may be required when the hole in the well becomes too deep for the tools to strike its bottom. I also combine a vibrating beam with an air-pump, of which the force of the expanding air, compressed by the downstroke, assists in raising the beam after each depression.

The accompanying drawings represent my invention.

Figure 1 is a side View, and Fig. 2 a plan, of the machine.

A represents a frame, made of I-beams, placed upon the axles B of a vehicle, and on the frame, between the front and rear axles, is the engine D or motive power by which the machine is operated, and behind the rear axle is the boiler A, with the water-tank B underneath.

D represents a flywheel, and E a frictionwheel for the drum on the sand-pump.

F is a chain-wheel operated by a chain, 1), connected with the engine, and attached to the chain-wheel is the crank-wheel G, to which the rod H, connecting the wheel with the lower end of the beam I, is secured. By this connectingrodthelower end of the beam I is drawn back and forth, causing its bent arm I? to rise or fall. The beam I, bent at a right angle at K, is there fulcrumed and supported in position by braces b. At the fulcrum of the beam is a pulley, s, and

beam rises a short arm, L, in the form of a section of acircle, the center of which is at K. At the end of the arm L is a sheave, a, over which and over the pulley s a rope, 0, passes. To the forwardend of the rope c is attached a clamp, that holds the drilling-rope to which the tools for drilling are fastened, and the rear end of this rope is wound around a reel, M, in front of the beam I. This reel is turned by a wornrwheel, d, and a worm, e, operated bya handle, f, to lengthen or shorten the rope c in adjusting the tools to strike the bottom of the well.

The reel 1) on the crank-wheel G is used in the usual manner for carrying a rope to raise tools from the well, to drive pipes into the ground, or for starting a hole, and is provided with a suitable friction-lever, m. The lever 1" serves for starting, stopping, or reversing the motion of the engine by means of the valve 1%.

To the forward-reaching arm, 1?, of the beam I is attached the piston-rod h of an air-pump, N, which rod is raised and lowered by the beam when in motion. The air-pump is composed of two cylinders, 1 and 2, and an airchamber, 3, communicatingwith both. In the cylinder 1 is the piston operated by the rod 72, and in cylinder 2 is a similar piston independ ent of the former, its rod extending upward through a frame, h, and terminatinginascrew threaded sleeve, that is turned by ahandle, c, and presses down upon a spiral spring, t, that surrounds the piston-rod, and is confined in the frame between the lower end of the sleeve and a collar on the piston-rod below, so that the pressure brought against the spring by the raising of the piston is resisted in proportion to the compression by the sleeve on top,which by turning the handle can be increased or diminished. The resistance of the air in the air-chamber at the descentof thepistonin cylinder 1 is overcome by the greater power of the beam at its downstroke, and at its return stroke, when it has to lift the weight of the tools, it is, by the force of the expanding air in the air-pump bearing against the piston, assisted in rising. The chain-wheel E, propelled by the chain 1), assists in turning the wheels of the vehicle carrying the machine when it is to be conveyed from one place to another, the beam standing idle, and the chain 1), passing over the chain-wheel F, serves to operate the beam. The chains are employed in preference to belts on account of their not being affected by a change of temperature or atmosphere. On the frame A,between the engine and the boiler, a fan, 0, is placed for dressing tools, &c. 1

Having thus described my invention, I claim- 1. The combination of the vibrating beam I with piston-rod h,secured thereto,with the airpump, provided with two chambers and two pistons one of the pistons being provided with a screw-handle and spring, substantially as shown.

2. The combination of the vibrating beam I with the air-pump N, substantially as shown and described.

In testimony whereof I affix my signature in 0 presence of two witnesses.

' WILLIAM VELTE.

Witnesses:

LOUIS MOESER, T. F. LEHMANN. 

